Egg-tester.



r, w. DOBBEL. EGG TESTER- APPLICATION FILED MAY 23' I914.

1,144,466., Patented June 29, 1915 WITNESSES. llW/ENTOR W W lHl- NORRIS Fumes C0, PHOTO IJIHQ. WASHING TON. D C.

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EGG-TESTER.

Specification of Letters Patent.

Patented June 29, 1915.

Application filed May as, 1914. Serial No. 841,563.

To all whom it may concern:

Be it known that I,FREDERIOK W. DoBBEL, acitizen of the United'States, residing at Sonoma, in the county of Sonoma and State of California, have invented certain new and useful Improvements in Egg-Testers, of which the following is a specification.

The present invention relates to improvements in egg testers adapted for testing the eggs during incubation, and without removing the eggs or handling the same.

At present, eggtesters are employed which are of the fuel oil lamp type having a dark shade provided with anopening in its side wall and to which opening the eggs are placed, the light of the lamp penetrating the shell of the'egg and by keeping the room dark, the fertility of the egg may be readily determined. This method necessitates the removing of each egg from the tray, necessitates thehandling and jarring of each egg, and requires considerable time to test each egg, makingthe operation of testing the eggs contained in an incubator a long and tedious objects to provide a portable egg tester, that is, one which is moved from egg to egg without the necessity of disturbing the eggs in theirresting place, ifit is not necessary;

one by which the eggs may be readily and rapidlv tested in their trays, and one which is particularly adapted for the testing of eggs while the same are lying on the egg tray of an incubator.

p The invention consists broadly in a housing or shade nrovided'with an elongated part formed with an opening in its end and said'housing containingasuitable illuminating means preferably an electric lamp connected to a source of supply and for projecting rays through said opening to penetrate the egg shell when the elongated end of said housing is in contact. therewith.

With the above mentioned and other objects in view, the invention consists in the novel combination andconstruction of parts hereinafter described, illustrated in the accompanying drawings and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size andminor details of construction within the scope of the appended claims may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

To more fully comprehend the invention, reference is directed to the accompanying sheet of drawings illustrating the preferred form of my invention, and in which Figure 1 is a view in side elevation of my invention, disclosing the lamp socket forming the handle, the housing and the elongated portion of the housing open at its lower end. Fig. 2 is a longitudinal sectional view of the housing, disclosing the lamp, the manner of mounting the housing on the lamp socket, and the elongated portion open at its lower end. Fig. 3 is a sectional view of the housing taken on line 3-3 of Fig. 1. Fig. 4: is a view in detail of the manner of mounting one section of the h0using on the supporting bracket.

Referring more particularly to the drawings wherein like characters of reference designate corresponding parts throughout the several views, the numeral 1 is a suitable electric socket of any well known type, elongated to form a suitable hand grip and preferably containing a switch operated bythe button 2 which controls the current passing through the socket from the feed wires 3, which receive their power from any suitable source, not shown.

Removably mounted in one end of the socket 1 is a suitable electric lamp 4 and mounted on the end of the socket at the base of the lamp is a suitable circular supporting bracket 5 formed with the annular flange 6 which is formed in its surface with an annular depression 7 provided at intervals with suitable openings. The lamp is in closed-by a suitable housing of substantially the same general configuration of the lamp and of a size slightly larger than the same, and said housing is divided longitudinally into the upper removable and lower stationary sections 8 and 9. The trough shaped sec tion 9 adjacent its outer end is formed with a cylindrical tapering chamber 10 communicating at its large end with the interior of said shade and open at its lower end, as at 11, and said chamber provides a means for the projection of the light rays from the housing and the. opening at the lower end thereof is .adapted to be positioned into engagement with. the egg shell preferably at the air pocket in the large oval end thereof, and the rays of light penetrating the shell will enable one to readily determine the fertility of the egg.

One portion of the upper side edges of the lower section 9 is bent inwardly as at 12 to provide suitable grooves for the reception of the outwardly bent side flanges 13 of the side edges of the upper section 8. The forward curved edge of the upper section 8 is bent over as at 14 forming a groove in' which is received the outwardly projecting flange 1 1 formed on the forward curved inwardly bent flanged portion 15 whichlim its the insertion of the sections Within the bracket,and said flanged portion is provided with suitable apertures adapted to register With the apertures in the supporting bracket.

The section 9 is preferably attached to the supporting bracket by means of suitable bolts or other fastenings 16 Which are inserted through the alined apertures. The upper removable section is retained in position by a suitable thumb screw 17 Which enablesthe upper s'ection to be quickly detached from the bracket and by moving the same forwardly relative to the lower section, the two may be readily separated. WVhen the top section isremoved access may be readily obtained to the lamp either for eX- ami nation or removal from its socket.

The supporting bracket 5 is preferably provided With a plurality of openings in its rear Wall for the escape of the heat from the interiorof the housing or shade.

The interior of the sections 8 and 9 are preferably coated with some highly refleeting material and the outletopening carries a suitable pad or protecting covering 18 secured thereover. in any suitable manner, preferablyby the binding cord 19, the pad eXtending beyond the end of the material, thus preventing the material from contacting ivith the egg shell and also providing a tight-joint when the tester is in use on the In an incubator, the eggs for hatching are arranged in rows in the trays and Withtl'ie large ends all in one direction for convenience in testing. "Whenit is time for test; ing the eggs, the operator With my improved apparatus need only draw the tray from Within the incubator, exclude the light from around the incubator, turn the syvitchto permit the lamp to be lighted, andthen place the opening 11 onthe large end of eachegg, Wherethe air cell is located, and the light rays from the opening will penetrate the egg shell and enable the operator toobserve Whether or not the germ in the egg isalive. If necessary each egg after being examined may be turned, but it is to be understood that by the use of my improved apparatus it isnot necessary to remove each egg from the tray.

Having thus described my invention What I claim and desire to protect by Letters Patent is 1. In an egg tester, the combination with an electric lamp and socket therefor, a fieXible connection between said socket and a source of electric supply, a shade inclosing the lamp and detachably connected to said socket and divided into sections longitudi nally, one of said sections being provided with a downwardly rejected funnel, said eXtensien co nmuni'ea ing 7 at its: large end with the intense or the'saia shade and open at it maller end t the atm sphere, and a protecting strip inounted'on open end of the extension for protecting the eggs to be tested against breakageby "cbntact of the tester therewith, a

2'. in egg as-ta; the teammate v'vith eleetric lamp and so'el' et therefor, of a supporting bracket carried bysaid socket, r

shade inelesingsaid amp are ee'nneerea to said sn perting bracket and divided into se d l si u ml s w of d ction being rem-red with an (inwardly projecting funnel shaped er-sen emrnrmcatin et its 1 large eta with the interior or smashade "the open at its outer end fo'r directing rays of light onto a eggs m be tested.

3. In eg tester the emanates ea 7 an electric lamp and socket therefor, of a up r hrai kt ca e en shade inclosing said lamp eta mattered to said supporjtin bracket, said shade divided 1611;;rt11'dina11 1 in 0 5 Ii'ty er ue aeha n sec ions 1min "itterloekin shad protected with ope direti-ngrays of, retreat the eg'g'sto be t d-f a a 1' a 4. In an egg tester as eointinatibn with an electric lamp and socket theref'or, of a asserting f rst "fee by said socket, i, hade, iae -s ngsaiditmp, saidshade divided iofigaaa fiauy into tit arty of -detacjh'tt1e sections, ihean'sftir ate httly seeu'img each of said sections to sa d, racket one an t nth t rmed w th bii' i e t e iartr diretijngsthe o'fligh't-onto the eggs to be tested 1 r a e g e er th st ea Wi r v I tctoreurrdtnaing thefed'ges or saidopen in r 6.; In a teste t eieot tittuqn w th an eras-a lamp tin-a ters; the efor, of a supporting bracket carriedby said socket, a

we es, when 11mg thereln for shade inclosing said lamp, said shade divided longitudinally into a plurality of detachable sections having interlocking edges, means for detachably securing each of said sections to said bracket, one of said sections formed with a funnel shaped projection communicating at its large end with the interior of said shade and open at its small end, and a protector carried by said projection and extending beyond the edges of the opening at said smaller end.

7. A portable egg tester, the combination with a socket provided with a controlling switch, of an electric lamp secured to said socket, a flexible connection between the socket and a source of electric supply, a shade or housing for inclosing said lamp,

said shade divided longitudinally into a plurality of sections, means for detachably securing said sections together, means for detachably connecting the shade sections to the lamp socket, and an open ended extension downwardly projected from one of the sections of said shade and communicating with the interior thereof, the said extension directing the rays of light onto the article to be tested.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

FREDERICK W. DOBBEL.

Witnesses:

R. J. DAUNEMARK, E. J. LUDTKE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. 0. 

